EP2914935B1 - Dispositif de mesure, installation de mesure et procédé de détermination d'une grandeur de mesure - Google Patents

Dispositif de mesure, installation de mesure et procédé de détermination d'une grandeur de mesure Download PDF

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Publication number
EP2914935B1
EP2914935B1 EP13739353.4A EP13739353A EP2914935B1 EP 2914935 B1 EP2914935 B1 EP 2914935B1 EP 13739353 A EP13739353 A EP 13739353A EP 2914935 B1 EP2914935 B1 EP 2914935B1
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EP
European Patent Office
Prior art keywords
measuring
information
measuring device
measured variable
data
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Active
Application number
EP13739353.4A
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German (de)
English (en)
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EP2914935A1 (fr
Inventor
Michael Daheim
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Krohne Messtechnik GmbH and Co KG
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Krohne Messtechnik GmbH and Co KG
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Publication of EP2914935A1 publication Critical patent/EP2914935A1/fr
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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/20—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow
    • G01F1/22—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow by variable-area meters, e.g. rotameters
    • G01F1/24—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow by variable-area meters, e.g. rotameters with magnetic or electric coupling to the indicating device
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D3/00—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
    • G01D3/028—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups mitigating undesired influences, e.g. temperature, pressure
    • G01D3/036—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups mitigating undesired influences, e.g. temperature, pressure on measuring arrangements themselves
    • G01D3/0365—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups mitigating undesired influences, e.g. temperature, pressure on measuring arrangements themselves the undesired influence being measured using a separate sensor, which produces an influence related signal
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/80—Arrangements for signal processing

Definitions

  • the sensor device generates at least one measurement information which is dependent at least on the measured variable and determines the evaluation device at least one result value for the measured variable.
  • the invention relates to a measuring arrangement having at least one measuring device for determining at least one measured variable and having at least one data device separate from the measuring device.
  • the measuring device likewise generates at least one measuring information dependent at least on the measured variable and determines at least one result value for the measured variable.
  • the measuring device and the data device are connected to each other at least temporarily.
  • the invention relates to a method for determining at least one measured variable.
  • the measured variable is, for example, the flow, the level, the pH or the temperature of a medium.
  • the viscosity of the medium must also be included in the analysis or evaluation, depending on the measurement principle for highly accurate measurements. The same applies to the density of the medium, if you want to convert between mass and volume flow measurements.
  • the publication DE 10 2006 016 381 A1 shows a measuring arrangement with at least one meter and one of the meter separately configured and arranged evaluation.
  • the measuring device generates a raw value, from which the evaluation device determines the measured value.
  • the evaluation device has access to an additional measuring device.
  • the determined measured value is displayed by the measuring device via a display unit belonging to the measuring device.
  • the measuring device therefore serves to generate a raw value and to display the measured value obtained therefrom by a separate device.
  • a level gauge which can be used for any applications, describes the published patent application DE 102 60 959 A1 , In this case, stored in a memory a plurality of parameter sets that are suitable for the different applications. An evaluation unit accesses the respective parameter set and calculates the fill level from the actual measurement signal.
  • a measuring device which receives different system parameters from an external data device via an interface.
  • the invention is therefore based on the object of specifying a measuring arrangement and also a method for determining a measured variable, which is content with a limited energy and storage requirements and which also allows a complex evaluation for obtaining the result value for the measured variable.
  • a measuring device is initially and essentially characterized in that the evaluation device outputs the measurement information or information dependent thereon via the interface, that the evaluation device receives at least one intermediate information generated as a function of the measurement information or the information dependent thereon via the interface and that the evaluation device determined depending on the intermediate information the result value.
  • the measuring device generates a measurement information which depends on the measured variable to be determined and from which a result value can therefore also be determined as the measured value for the measured variable. This determination does not take place completely in a measuring device and not completely in a separate unit from the measuring device, but instead of the measuring information from a separate device, the measuring device receives intermediate information with which the measuring device further calculates or definitively determines the measured value. As a result, part of the measured value determination is shifted to the outside.
  • One advantage is that the measuring device can be relatively simple and compact. Also, the energy requirement for possibly complex calculations is shifted from the process area to the outside in a safe area.
  • the measuring device has an interface, which in one embodiment in particular also allows the connection to the Internet, so that in this embodiment, the measuring device can process or generate the data or information or signals accordingly.
  • the connection to the outside can also be generated if necessary only for certain periods.
  • the previously derived and indicated object is achieved according to the invention in the measuring arrangement mentioned in the introduction in that the evaluation device outputs the measurement information or information dependent thereon to the data device.
  • the data device determines an information dependent on the measurement information or the information dependent thereon, which receives the evaluation device.
  • the evaluation device determines the result value as a function of the intermediate information.
  • the measuring arrangement according to the invention which allows the determination of at least one measured variable, is composed at least of an actual measuring device and a data device.
  • the measuring device is designed for the measurement of the measured variable and, starting from a measurement information as a primary or raw value, allows the determination-in particular the calculation-of the event value as a value to be output for the measurement as a measured value.
  • the data device is provided for the determination, which is distinguished, for example, by a larger data memory or a superior computer processor compared to the measuring device.
  • the data device for the calculation of the measuring device is superior in that the data device is located in an area which is not subject to energy limitation. Such energy limits are common, for example, when used within potentially explosive areas.
  • the measurement information is generated by the measuring device, transmitted to the data device and processed there for intermediate information. This intermediate information is in turn used by the measuring device for determining the event value.
  • At least one secondary sensor device is provided which generates at least one secondary measurement information.
  • the measurement accuracy in the measured variable to be determined can be increased by including dependencies of such a secondary measured variable in the determination of the result value or by determining the same measured variable for checking or comparison again and possibly with another measuring method.
  • the secondary measurement information is therefore transmitted in one embodiment of the secondary sensor device to the data device. Connection problems and queries are therefore also shifted from the measuring device to the data device and the associated greater possibilities.
  • the data device is designed in such a way that it determines the intermediate information at least as a function of the secondary measurement information.
  • the data device as it were charges the measurement information with the secondary measurement information in order to generate the intermediate information therefrom.
  • the data device transmits the secondary information or optionally a dependent information to the measuring device, so that it determines the result value with it and with the intermediate information.
  • the previously derived and indicated object is achieved in the method mentioned above for determining at least one measured variable by a method comprising at least the following steps: At least one measuring information dependent on the measured variable is generated by a measuring device. The measuring device or information dependent thereon is transmitted by the measuring device to a data device separate from the measuring device. At least one intermediate information is determined by the separate data device based on the measurement information or the information dependent thereon. Subsequently, at least one result value for the measured variable is determined by the measuring device, at least from the at least one intermediate information item.
  • the method for determining a measured variable sets an intermediate step for the transition from the directly determined measuring information as the primary raw measured value, which reflects the actually interesting measured variable, to the result value for the determined or measured measured variable, starting from a measuring device based on the measuring information or a dependent thereon information, for example, by pre-processing of the measurement information from the measuring device, an intermediate information determined and the measuring device is provided.
  • This intermediate information which is based for example on more complex algorithms or calculations or for which access to larger data sets is required, is then used by the measuring device to determine the result value.
  • At least one secondary measurement information is generated by a secondary sensor device.
  • more information about the medium to be measured or the process or space to be measured, etc. is obtained by a secondary sensor device. This is used, for example, to increase the measurement accuracy or to perform a plausibility check. If, for example, the fill level of a medium is continuously measured by means of a measuring device which applies the radar principle, then, for example, the secondary sensor device is designed as a limit level switch.
  • the secondary sensor device serves to generate secondary measurement information, which is used to resolve the dependence of the (primary) measured variable on this secondary measured variable. For example, the temperature dependence of the (primary) measured variable must be taken into account by measuring the temperature.
  • the measurement of the secondary measured variable finds its application in that in one embodiment the intermediate information is determined on the basis of the secondary measuring information and based either on the measuring information or on the information dependent thereon. In a further refinement, the result value is determined on the basis of the secondary measurement information and the intermediate information.
  • a measuring device 1 is shown as part of a measuring arrangement 9, wherein the figure is not a representation in the sense of a correct electrical circuit diagram, but rather the effect relationships between the various components of the measuring arrangement 1 should be recognizable.
  • a sequence of the steps of the method for determining a measured variable is shown.
  • the Fig. 1 shows partially configured as a block diagram, a measuring arrangement 1 with a sensor device 2, which serves to measure the flow of a medium (indicated by the arrow) according to the float principle.
  • the sensor device 2 is connected to an evaluation device 3, which, based on measurement information of the sensor device 2, determines or specifically calculates a result value-that is, in particular the measured value-for the measured variable flow.
  • the measurement information is therefore a raw value or a primary measured value, from which the flow results.
  • the problem with this dependency on medium or environmental / process variables is the amount of data or the possibly computation-intensive relationships between the individual variables.
  • these requirements can be met by an appropriate selection of the components, which however may be cost-intensive.
  • either the application can be restricted to individual media or ambient conditions or the measurement accuracy is reduced by appropriate simplifications in the evaluation. difficulties may occur in the calculations, in particular, when the meter is for example in a hazardous area, so that there is a limitation of the power supply. More complex calculations can therefore - with existing energy limitation - lead to a significant extension of the calculation period, which is in contrast to the fact that there is a certain need for timely measured values.
  • the evaluation device 3 has an interface 4, which allows, for example, the connection to a fieldbus line or to the Internet or generally to separate from the measuring device 1 units.
  • the sensor device 2 consists of a measuring tube 5 through which the measuring medium flows, which section has, in particular, a conically widening diameter.
  • a float 6 is arranged.
  • the float 6 is lifted horizontally upwards by the buoyancy and by the medium flowing past it and pressed down by the weight force. After a transient phase, the float 6 remains at a level that allows a conclusion on the flow of the medium.
  • This position is tapped magnetically here, for example via the detection device 7 (this position determination is described for example in the patent specification DE 196 39 060 C2 ).
  • the detection device 7 On the basis of the measurement, the detection device 7 generates measurement information which, depending on the design, is a primary raw measured value or a raw measurement signal. In the embodiment shown, the measurement information is the height specification of the float 6.
  • the relationship between the height value and the flow is determined, inter alia, by the shape of the float 6, the shape of the measuring tube 5 and, in particular, by the viscosity of the measuring medium.
  • the latter dependence is - insofar as the application of the measuring device 1 is not limited to certain media - required for a variety of media deposit a larger number of calibration data. If necessary, this places great demands on the storage unit 8 of the measuring device 1, embodied here as part of the evaluation device 3. Furthermore, the temperature dependence of the viscosity must also be taken into account.
  • the measuring device 1 is integrated in a measuring arrangement 9, which expands the possibilities of the measurement and counteracts the above-mentioned problems.
  • the evaluation device 3 is connected via the interface 4 with a data device 10.
  • the connection can be permanent or temporary and serves in particular the data or information exchange.
  • the connection is here in particular bidirectional.
  • the data device 10 is preferably located outside the process environment, so that, in particular, there are no energy restrictions or space limitations. In one embodiment, it is in particular a server that can be reached via an Internet connection.
  • the data device 10 has a data device interface 11 which serves to communicate with the evaluation device 3.
  • the data device 10 has a data memory 12 configured separately here, in which a plurality of calibration curves or parameter sets for different media are stored.
  • a secondary sensor device 13 is additionally provided, which is designed here as a temperature sensor and measures the temperature of the measuring medium.
  • the secondary sensor device 13 is connected to the data device 10 which, on the basis of the temperature of the medium, selects the appropriate calibration data as secondary measurement information and determines and in particular calculates the intermediate information from the measurement information of the measuring device 1.
  • the intermediate information is in one variant a single value and in another variant one Data record, which is transmitted in particular to the evaluation device 3 of the measuring device 1 for storage in the local storage unit 8.
  • the evaluation device 3 determines the result value of the flow as the measured value of the measured variable.
  • the measuring device 1 measures, receives from the separate data device 10 from the measurement an intermediate information and in turn determines itself the result value as a measured value for the measured variable to be determined.
  • the Fig. 2 schematically shows a sequence of individual steps of an alternative implementation of the method according to the invention.
  • step 101 the measuring device obtains measurement information which is dependent on the measured variable to be measured.
  • step 102 this measurement information is transmitted to the data device.
  • step 103 based on the data or formulas stored there, a calculation or general determination of an intermediate information takes place.
  • the intermediate information is passed back to the measuring device in step 104.
  • step 105 the measuring device accesses a secondary sensor device, from which secondary measurement information is tapped as additional information about the measuring medium or the process in which the medium is located and in which the measurement takes place.
  • a result value for the measured variable to be determined is determined by the measuring device in step 106 and displayed in step 107 via a local display unit.
  • the process returns to step 105.
  • the query of the secondary sensor device in step 105 and the calculation of the current Result value in step 106 thus takes place with the current measurement and secondary measurement information, however, using the intermediate information still valid as an intermediate calculation step in the determination of the result value. Therefore, in this embodiment, in particular, the connection between the measuring device and the data device can exist only temporarily and does not have to be maintained all the time.
  • the method is based on the fact that a part of the calculation or a part of the data storage is outsourced away from the actual measuring device to a separate data device.
  • the result value is ultimately generated by the measuring device itself, so that the connection between the measuring device and the data device may possibly only be required for a limited period of time.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Testing Or Calibration Of Command Recording Devices (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Claims (7)

  1. Arrangement de mesure (9) comprenant au moins un dispositif de mesure (1) destiné à déterminer au moins une grandeur de mesure et comprenant au moins un dispositif de données (10) séparé du dispositif de mesure (1), le dispositif de mesure (1) générant au moins une valeur mesurée brute dépendant au moins de la grandeur mesurée et déterminant au moins une valeur de résultat pour la grandeur mesurée et le dispositif de mesure (1) et le dispositif de données (10) étant au moins temporairement reliés l'un à l'autre,
    le dispositif de mesure possédant un dispositif d'interprétation (3),
    caractérisé en ce que la grandeur mesurée intéressante proprement dite se reflète dans la valeur mesurée brute,
    en ce que le dispositif d'interprétation (3) délivre la valeur mesurée brute au dispositif de données (10), en ce que le dispositif de données (10) détermine une information intermédiaire dépendante de la valeur mesurée brute, de sorte qu'une partie de la détermination de la valeur de résultat pour la grandeur mesurée s'effectue dans le dispositif de données (10), en ce que le dispositif d'interprétation (3) reçoit l'information intermédiaire et en ce que le dispositif d'interprétation (3) calcule la valeur de résultat en fonction de l'information intermédiaire.
  2. Arrangement de mesure (9) selon la revendication 1, caractérisé en ce qu'il existe au moins un dispositif de détection secondaire (13) qui génère au moins une information de mesure secondaire.
  3. Arrangement de mesure (9) selon la revendication 2, caractérisé en ce que le dispositif de détection secondaire (13) communique l'information de mesure secondaire au dispositif de données (10) et en ce que le dispositif de données (10) détermine l'information intermédiaire au moins en fonction de la valeur mesurée brute et de l'information de mesure secondaire.
  4. Procédé de détermination d'au moins un grandeur mesurée, au moins une valeur mesurée brute dépendante de la grandeur mesurée étant générée par un dispositif de mesure (1), dans laquelle se reflète la grandeur mesurée intéressante proprement dite, la valeur mesurée brute étant communiquée par le dispositif de mesure (1) à un dispositif de données (10) séparé du dispositif de mesure (1), une partie de la détermination de la valeur de résultat pour la grandeur mesurée étant effectuée par le dispositif de données en déterminant au moins une information intermédiaire à partir de la valeur mesurée brute et au moins une valeur de résultat pour la grandeur mesurée étant calculée par le dispositif de mesure (1) en partant au moins de l'au moins une information intermédiaire.
  5. Procédé selon la revendication 4, caractérisé en ce qu'au moins une information de mesure secondaire est générée par un dispositif de détection secondaire (13) .
  6. Procédé selon la revendication 5, caractérisé en ce que l'information intermédiaire est déterminée à partir de l'information de mesure secondaire et à partir de la valeur mesurée brute.
  7. Procédé selon la revendication 5 ou 6, caractérisé en ce que la valeur de résultat est calculée à partir de l'information de mesure secondaire et de l'information intermédiaire.
EP13739353.4A 2012-10-31 2013-06-26 Dispositif de mesure, installation de mesure et procédé de détermination d'une grandeur de mesure Active EP2914935B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201210021312 DE102012021312B4 (de) 2012-10-31 2012-10-31 Messvorrichtung, Messanordnung und Verfahren zur Bestimmung einer Messgröße
PCT/EP2013/001871 WO2014067591A1 (fr) 2012-10-31 2013-06-26 Dispositif de mesure, installation de mesure et procédé de détermination d'une grandeur de mesure

Publications (2)

Publication Number Publication Date
EP2914935A1 EP2914935A1 (fr) 2015-09-09
EP2914935B1 true EP2914935B1 (fr) 2018-10-03

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EP13739353.4A Active EP2914935B1 (fr) 2012-10-31 2013-06-26 Dispositif de mesure, installation de mesure et procédé de détermination d'une grandeur de mesure

Country Status (5)

Country Link
US (1) US9766103B2 (fr)
EP (1) EP2914935B1 (fr)
DE (1) DE102012021312B4 (fr)
RU (1) RU2641512C2 (fr)
WO (1) WO2014067591A1 (fr)

Families Citing this family (4)

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Publication number Priority date Publication date Assignee Title
DE102012021363B4 (de) * 2012-11-02 2016-08-11 Krohne Messtechnik Gmbh Vorrichtung zur Bestimmung des Durchflusses nach dem Schwebekörperprinzip
DE102014108946A1 (de) * 2014-06-26 2015-12-31 Valeo Schalter Und Sensoren Gmbh Verfahren und System zum Aufbereiten von durch kraftfahrzeugseitig angeordnete Sensoren erzeugten Sensormesswerten
DE102018008542A1 (de) * 2018-11-01 2020-05-07 3D Flow4Industry Gmbh & Co. Kg Vorrichtung zur Bestimmung von physikalischen Messwerten, Schwebekörper und ein Verfahren
EP4116690A1 (fr) * 2021-07-09 2023-01-11 VEGA Grieshaber KG Procédé de mesure et dispositif de mesure

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DE10237931A1 (de) * 2002-08-14 2004-02-26 Endress + Hauser Gmbh + Co. Kg Vorrichtung zur Überwachung eines vorbestimmten Füllstands eines Messmediums in einem Behälter
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DE10260959A1 (de) 2002-12-20 2004-07-15 Endress + Hauser Gmbh + Co. Kg Füllstandsmeßgerät und Verfahren zur Füllstandsmessung
DK1725839T3 (en) * 2004-03-19 2014-03-17 Flowtec Ag Coriolisbaseret mass flow meter
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JP5361147B2 (ja) * 2007-06-25 2013-12-04 アズビル株式会社 流量計の調整方法、流量計測装置及び調整データ管理システム
DE102007030700A1 (de) * 2007-06-30 2009-05-07 Endress + Hauser Flowtec Ag Meßsystem für ein in einer Prozeßleitung strömendes Medium
US8447536B2 (en) 2007-06-30 2013-05-21 Endress + Hauser Flowtec Ag Medium density measuring system
RU2436048C1 (ru) * 2010-09-14 2011-12-10 Общество с ограниченной ответственностью "Научно-производственное предприятие "ЭГО" Способ измерения физической величины
DE102011006989A1 (de) * 2011-04-07 2012-10-11 Endress + Hauser Gmbh + Co. Kg Vorrichtung und System zur Bestimmung, Optimierung oder Überwachung zumindest einer Prozessgröße

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Also Published As

Publication number Publication date
WO2014067591A1 (fr) 2014-05-08
DE102012021312B4 (de) 2015-05-07
RU2015120463A (ru) 2016-12-20
US20140116130A1 (en) 2014-05-01
EP2914935A1 (fr) 2015-09-09
US9766103B2 (en) 2017-09-19
DE102012021312A1 (de) 2014-04-30
RU2641512C2 (ru) 2018-01-17

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